﻿/* 
 * Copyright 2010 The Apache Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License")
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using log4net;

namespace Ngilead.Core.Replicator.Merge
{
    class MergeSetReplicator : SetReplicator
    {
        #region Attributes

        /// <summary> Logger channel</summary>
        private static ILog logger = LogManager.GetLogger(typeof(MergeSetReplicator));
        
        #endregion

        #region Properties

        /// <summary>
        /// The associated persistence util
        /// </summary>
        public IPersistenceUtil PersistenceUtil {get; set;}
        
        #endregion

        #region Constructor
        
        /// <summary>
        /// Constructor
        /// </summary>
        public MergeSetReplicator()
        {
        }

        #endregion

        #region Overridden
        /// <summary>
        /// Override for set replication.
        /// Will wrap the cloned set in persistent set
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="fromCollection"></param>
        /// <returns></returns>
        public override T ReplicateSet<T>(T fromCollection)
        {
        //	Get and reset proxy informations if any
	    //
		    Dictionary<string, object> proxyInformations = BeanTransformer.CurrentProxyInformations;
		    BeanTransformer.CurrentProxyInformations = null;
    		
	    //	Clone collection
	    //
		    T collection = base.ReplicateSet(fromCollection);
    		
	    //	Turn into persistent collection if needed
	    //
		    if (proxyInformations != null)
		    {
			    Object parent = BeanTransformer.GetCurrentParent();
			    return (T) PersistenceUtil.CreatePersistentCollection(parent, proxyInformations, collection);
		    }
		    else
		    {
			    return collection;
		    }
        }
        #endregion
    }
}
